ELECTROMAGNET FOR MAGNETOTHERAPEUTIC DEVICE, COIL FOR MAGNETOTHERAPEUTIC DEVICE, AND MAGNETOTHERAPEUTIC DEVICE

摘要

An electromagnet for magnetotherapeutic devices, which prevents the abrupt attenuation of magnetic flux densities even remote from the magnetic pole surface of the core and exhibits a sufficiently large pain-killing effect even in the human body. The electromagnet is constituted of a first cylindrical core (1) having a first hollow section, and a first coil (3) which is wound around the core (1) and generates a first magnetic field when an alternating current, a current obtained by rectifying the alternating current, or a pulsed current is made to flow therethrough.